Abstract A new one-step method for the synthesis of 4-methyl-3 (5)-nitropyrazole by nitration of 4-methylpyrazole is developed. Arylation of 4-methyl-3 (5)-nitropyrazole with 1, 3, 5- trinitrobenzene gives 1-(3, 5-dinitrophenyl)-4-methyl-3-nitropyrazole, nitration of which leads to 1-(3, 5-dinitrophenyl)-4-methyl-3, 5-dinitropyrazole. The action of 1 equiv. of an O-or S- nucleophile (phenolate, p-chlorobenzenethiolate and ethoxide ions; anions of ...
